Passport validity
//Your passport should be valid for the proposed duration of your stay; you do not need any additional period of validity on your passport beyond this.
The Italian authorities have confirmed they will accept British passports extended by 12 months by British Embassies and Consulates under additional measures put in place in mid-2014.//
Just copied and pasted from official FCO site with regards to ITALY. You are OK with your passport to travel. Bon Voyage. I am off tomorrow :-)